MSI Radeon HD 4770 also featuring the Sapphire Radeon HD 4730. The MSI Radeon HD 4770 has the same 750Mhz Clock Speed, 12% less Memory Speed and the same 640 Pixel Shaders compared to the Sapphire Radeon HD 4730. The MSI Radeon HD 4770 uses the RV740 GPU while the Sapphire Radeon HD 4730 is using the RV770 GPU.